I wonder when NFL teams are finally going to admit that QB height is something that should barely even be considered. There's hardly any advantage that a 6'4" QB has over a 6' QB. Neither can see over the top of their lineman, most NFL Offensive lineman are in the 6'3 - 6'8" range nowadays + wearing a helmet on top of that to add another inch or two of height. There no QB in the league that can see over the top of his entire O-line. Height also barely matters for getting balls knocked down/tipped by the d-line, all of those guys are 6' +, and with an arm up, add another 2 feet or so. They're just as likely to knock down a pass from a short QB as a tall one with their hands sticking up over 8 feet in the air.
QB height should be looked at, but only if ALL other things are equal when trying to choose between two QBs. I'd consider arm strength, accuracy, mobility, leadership/intelligence, and a host of other tangibles and intangibles before height.